← The evidence ledger
Evidence row 119607
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/defi/apr-apy
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 976ef36e80fe4dac927b5c3a287c6ad4c565b375cc7d1bfd06df3967cf6c5111
- Leaf
- 0xf5f9626f1bb408194a5cacb1bf6aeed013ee1311b1f9e83b10b034cd4d5435fe
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/defi/apr-apy"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:apr-apy-converte",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:apr-apy-converte",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:apr-apy-converte",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:apr-apy-converte",
"reference": "GCF2KDVH5vBRL6f9aSczTX6A6vac2c4x8GZjqUa6Ajm",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazphcHItYXB5LWNvbnZlcnRlciIsInJlZmVyZW5jZSI6IkdDRjJLRFZINXZCUkw2ZjlhU2N6VFg2QTZ2YWMyYzR4OEdaanFVYTZBam0iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjY1MzYxOTExN30.QLyNiQEx-QioSQU4UQF7YTvkB3waNAnELTBjiapRVBo"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"memo": "saylor:datadesk:apr-apy-converte",
"reference": "AJpkF2256SXGYKkCQexdTW7mxHTzcxJTYLsaio4BzUuY",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazphcHItYXB5LWNvbnZlcnRlciIsInJlZmVyZW5jZSI6IkFKcGtGMjI1NlNYR1lLa0NRZXhkVFc3bXhIVHpjeEpUWUxzYWlvNEJ6VXVZIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI2NTM2MTkxMTd9.dxel99nGJEkxg0z74mqg1TiPQ3REvy3WcSMi8RECAyM"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "92982",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:apr-apy-converte",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "95858",
"reference": "EdMV4SkFq6rvdYdQYuE5ZWPBF73xjYdXJcKo8apLL1sn",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazphcHItYXB5LWNvbnZlcnRlciIsInJlZmVyZW5jZSI6IkVkTVY0U2tGcTZydmRZZFFZdUU1WldQQkY3M3hqWWRYSmNLbzhhcExMMXNuIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkyOTgyLCJleHAiOjE3OTI2NTM2MTkxMTd9.0RjRUgUbMweiNc1r83qajRYQ7q3O7RywemotGQWWKQI",
"solUsdPrice": 104.32
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Convert APR to APY or back at any compounding frequency, with daily rate, doubling time and projected compounded versus simple earnings on a principal.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"apr_percent": "12",
"compounds_per_year": "365",
"days": "180",
"principal": "5000"
},
"type": "http"
},
"output": {
"example": {
"apr_percent": 12,
"apy_percent": 12.747462,
"balance_compounded": 5304.7692,
"balance_simple_apr": 5295.8904,
"compounding": "365 times per year",
"compounding_gain_percent_points": 0.747462,
"daily_rate_percent": 0.03287671,
"days": 180,
"doubling_time_days": 2108.7,
"earnings_compounded": 304.7692,
"earnings_simple_apr": 295.8904,
"note": "APY includes compounding, APR does not. Variable DeFi yields change constantly, so treat the projection as a scenario.",
"principal": 5000,
"source": "Compound interest conversion formulas"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"apr_percent": {
"description": "nominal APR in percent (or give apy_percent)",
"type": "string"
},
"compounds_per_year": {
"description": "optional 1-100000 or continuous, default 365",
"type": "string"
},
"days": {
"description": "optional projection days, default 365",
"type": "string"
},
"principal": {
"description": "optional starting amount, default 1000",
"type": "string"
}
},
"required": [
"apr_percent"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"apr_percent": {
"description": "Nominal annual rate without compounding, in percent",
"type": "number"
},
"apy_percent": {
"description": "Effective annual rate including compounding, in percent",
"type": "number"
},
"balance_compounded": {
"description": "Balance after the period with compounding at the APY",
"type": "number"
},
"balance_simple_apr": {
"description": "Balance after the period earning simple interest at the APR",
"type": "number"
},
"compounding": {
"description": "Compounding frequency used",
"type": "string"
},
"compounding_gain_percent_points": {
"description": "APY minus APR in percentage points",
"type": "number"
},
"daily_rate_percent": {
"description": "Equivalent daily compounded rate, in percent",
"type": "number"
},
"days": {
"description": "Projection length in days",
"type": "number"
},
"doubling_time_days": {
"description": "Days for the balance to double at this APY, null if the rate is not positive",
"type": [
"number",
"null"
]
},
"earnings_compounded": {
"description": "Earnings after the period with compounding",
"type": "number"
},
"earnings_simple_apr": {
"description": "Earnings after the period with simple interest",
"type": "number"
},
"note": {
"description": "Plain-language caveat about how to read and use the result",
"type": "string"
},
"principal": {
"description": "Starting amount used",
"type": "number"
},
"source": {
"description": "Where the data or formula comes from",
"type": "string"
}
},
"required": [
"apr_percent",
"apy_percent"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-22T07:18:19.153Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-22T07:18:18.855Z"
},
"resource": "https://saylorinnovations.com/api/defi/apr-apy",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"apr to apy converter",
"staking yield calculator",
"what is 12 percent apr as apy",
"daily compounding earnings",
"defi yield projection"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Convert APR to APY or back at any compounding frequency, with daily rate, doubling time and projected compounded versus simple earnings on a principal."
}What the leaf hashes
{"body":"976ef36e80fe4dac927b5c3a287c6ad4c565b375cc7d1bfd06df3967cf6c5111","id":119607,"kind":"listing","method":"baseline/1","observed_us":1793025616101962,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/defi/apr-apy","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xf5f8ca679c8f9e1e3fadf2916326092eed4e9873571a37ac623eca45819647e9
- 0x4afb6c7bd62e7eebcd8d90e21e1f425b002bed0b994ef035d08289f0bf6acba7
- 0xefa45b4e44032deb5af77572ce6cc34652eb25ba3c0c5a7a4624301b61a038c6
- 0xe7d3c69d1e8065010a43cac37530933f64a8d0fdbe4a097459c35dccdf780a4f
- 0x00c01cf7b3c77a4d338535631e3e086f8d4d9c7a9c58fa6e82f0bfb8f89ccc9a
- 0x6c4a6517db10d5090581fc099edbc9eb97f62c1379c546c76e48598e6be5e3e5
- 0xa7741eeb7054b49c5160bc2dc9ff39300ec239bde170aeddded2a80397aed0b7
- 0x7660d69949eef32f96c66c43b8e1f447dab15a109cfadc0c67284bf46534adfb
- 0xb03236d00755f756b022b8acf5ce6221f112d498410fa189525c0cd9621ec373
- 0x74b5156f36a704300634e9161bdb27e48fa391139b74707200a8fdaa6bea760a
- 0x625d2af057e293be1c3beb719789f9dc49df6cf80f71fb50444e4cba386a048f
- 0x4eeaa4735423e7633e0aaa6154804920315f945b1e4ceabd29282ec021cce244
- 0x79695e4356ea25a2b58265a824698704cd2c743099ce2dca9e41384ce8f1a8c5
- 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae